摘要
介绍了中国散裂中子源(CSNS)一期4 K低温恒温器的结构、性能测试及样品温度测试结果。测试结果显示样品座测点温度与实际样品温度存在温差,所以必须对样品温度进行校正。通过对样品区域进行热工分析,设计了可以密封氦气的样品盒,实现了测点温度与样品温度的一致。
This paper mainly introduces the structure,test results of the 4K closed cycle cryostat.The test results show that there is a difference between the sample holder temperature and the actual sample temperature,so the sample temperature must be corrected.Based on the thermal analysis of the sample area,a sample box which can seal helium is designed,and the measured temperature shows good agreement with the temperature of the sample.
作者
白波
胡海韬
袁宝
张绍英
黄志强
童欣
Bai Bo;Hu Haitao;Yuan Bao;Zhang Shaoying;Huang Zhiqiang;Tong Xin(Dongguan Branch,Institute of High Energy Physics,Chinese Academy of Sciences,Dongguan 523803,China;Dongguan Institute of Neutron Science,Dongguan 523808,China;Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China)
出处
《低温工程》
CAS
CSCD
北大核心
2019年第1期12-14,19,共4页
Cryogenics
基金
国家重点研发计划-中子散射样品环境及相关实验技术(2016YFA0401503)
国家重大科技基础设施项目(发改高技(2008)2578号)中国散裂中子源工程
关键词
低温恒温器
非直冷式
温差
温度校正
cryostat
indirect cooling
temperature difference
temperature correction
